CTS-Frequency Controls 416F37022CAT 37 MHz Crystal Equivalent & Substitute Parts

Part Overview

The CTS-Frequency Controls 416F37022CAT is a 37 MHz fundamental mode crystal oscillator in 4-SMD, No Lead surface mount package. This part is discontinued at DiGi Electronics. Equivalent and substitute parts within the CTS 416 series provide functional alternatives with identical or compatible electrical and mechanical specifications for applications requiring 37 MHz frequency generation with ±20ppm stability.

Key Parameters

Parameter	Specification
Frequency	37 MHz
Frequency Stability	±20ppm
Load Capacitance	10pF
ESR (Equivalent Series Resistance)	60 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-20°C to 70°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Physical Dimensions	0.063" L x 0.047" W (1.60mm x 1.20mm)
Height - Seated (Max)	0.018" (0.45mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution within the CTS 416 series is determined by the following critical parameters:

Frequency: All substitute parts operate at 37 MHz, matching the main part
Frequency Stability & Tolerance: All parts maintain ±20ppm specification
ESR: All parts specify 60 Ohms equivalent series resistance
Operating Mode: All parts operate in fundamental mode
Operating Temperature Range: All parts support -20°C to 70°C
Package & Mounting: All parts use identical 4-SMD, No Lead surface mount package with matching physical dimensions and height
Compliance: All parts are ROHS3 compliant with MSL 1 rating

The primary variable among substitute parts is Load Capacitance, which ranges from 8pF to 12pF. Load capacitance selection depends on the specific circuit design and oscillator load requirements. Parts with different load capacitance values are functionally equivalent when the circuit is designed for the corresponding load capacitance specification.

Parameter Comparison

Part Number	Manufacturer	Frequency	Frequency Stability	Load Capacitance	ESR	Package	Product Status	Inventory
416F37022CAT	CTS-Frequency Controls	37 MHz	±20ppm	10pF	60 Ohms	4-SMD, No Lead	Discontinued at DiGi Electronics	791 Pcs
416F37022CKR	CTS-Frequency Controls	37 MHz	±20ppm	8pF	60 Ohms	4-SMD, No Lead	Active	707 Pcs
416F37022CLR	CTS-Frequency Controls	37 MHz	±20ppm	12pF	60 Ohms	4-SMD, No Lead	Active	734 Pcs
416F37022CAR	CTS-Frequency Controls	37 MHz	±20ppm	10pF	60 Ohms	4-SMD, No Lead	Active	1050 Pcs

Engineering Selection Recommendations

416F37022CAR is the primary parametric equivalent to 416F37022CAT. Both parts specify identical electrical characteristics (37 MHz, ±20ppm stability, 10pF load capacitance, 60 Ohms ESR) and mechanical specifications (4-SMD, No Lead package, identical dimensions). The 416F37022CAR is currently active in production with higher inventory availability (1050 Pcs vs. 791 Pcs), making it the recommended direct replacement for discontinued 416F37022CAT applications.

416F37022CKR (8pF load capacitance) and 416F37022CLR (12pF load capacitance) are functionally equivalent alternatives when circuit design accommodates their respective load capacitance specifications. Both parts are active in production. Selection between 8pF, 10pF, and 12pF variants depends on the oscillator circuit's load capacitance requirement, which is determined during circuit design and tuning.

All substitute parts maintain identical compliance certifications (ROHS3, MSL 1) and operating temperature range (-20°C to 70°C), ensuring compatibility with existing design requirements.

Frequently Asked Questions (FAQ)

Q: Can 416F37022CAR directly replace 416F37022CAT?

A: Yes. Both parts specify 37 MHz frequency, ±20ppm stability, 10pF load capacitance, 60 Ohms ESR, and identical 4-SMD, No Lead package dimensions. The 416F37022CAR is the parametric equivalent with active production status.

Q: What is the difference between 8pF, 10pF, and 12pF load capacitance variants?

A: Load capacitance specifies the capacitive load the crystal oscillator is designed to drive. The correct variant depends on the oscillator circuit design. Mismatched load capacitance can result in frequency deviation from specification. Consult circuit design documentation to determine the required load capacitance value.

Q: Are all substitute parts in the same physical package?

A: Yes. All parts use 4-SMD, No Lead surface mount package with identical dimensions (0.063" L x 0.047" W / 1.60mm x 1.20mm) and maximum seated height (0.018" / 0.45mm). They are mechanically interchangeable on PCB layouts designed for this package.

Q: What is the product status difference between 416F37022CAT and 416F37022CAR?

A: 416F37022CAT is discontinued at DiGi Electronics. 416F37022CAR is active in production. For new designs or replenishment, 416F37022CAR is the recommended selection due to ongoing availability.

Q: Do all parts meet the same compliance requirements?

A: Yes. All parts are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited shelf life). All parts operate across the -20°C to 70°C temperature range with ±20ppm frequency stability.

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